Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD3SM callsign genealogy
Currently held by LARSON, GEORGE P
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KD3SM's current licensee, walking backwards.
- BURCH, MATTHEW AIAgranted 2016-03-30cancelled 2016-06-03
Successor callsigns
Callsigns held now by people who previously held KD3SM.
- LARSON, GEORGE PPAgranted 2013-02-06cancelled 2014-06-06
All historical holders
Every license row we've seen with the callsign KD3SM, oldest first.
- LARSON, GEORGE P PA2013-02-06 → cancelled 2014-05-15
- Burch Sr, Matthew A TN2026-04-14 active